Apparatus for devulcanizing rubber.



Q E. W. SNYDER.

APPARATUS FOR DEVULGANIZING RUBBER. APPLICATION FILED JULY 10, 1909.

QMHME Patented Mar. 15,1910.

2 SHEETS-SHEET l.

E. W. SNYDER.

APPARATUS FOR DEVULGANIZING RUBBER.

APPLIOATIOH FILED JULY 10, 1909.

QM HM. mama Mar. 15,1910.

2 BEEETS-BHEET 2.

'Fig.14 is a detailed perspective view of one 'pipes 5, one arranged adjacent each end of EDGAR W.

SNYDER, OF OLATHE, KANSAS.

APPARATUS FOR DEVULCANIZING RUBBER.

Specification of Letters Patent. Pa tented Ma r. 15. 1 910.

Kpplication filed July 10, 1909. Serial No. 506.947.

To all whom it may concern:

Be it known that I, EDGAR SNYDER, a citizen of the United States, residing at ()lathe, in the county of J ohnson and State of Kansas, have invented certain new and useful Improvements in Apparatus for Devulcanizing Rubber, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to the subject-of reclaiming waste rubber, such as tires,'hose, over-shoes, and the like, and the principal object of the same is toprovide an apparatus for reclaiming rubber in which the foreign matter is removed therefroin so as to restore the rubber to its original condition.

In carrying out the objects of the invention generally stated above, it will be understood, of course, that the essential features thereof are necessarily susceptible. of changes in details and structural arrangements, but a preferred and practical embodiment thereof is shown in the accompanying. drawings, wherein Figure l is'a central vertical longitudinal sectional view of the improved apparatus. Fig. 2 is a central vertical transverse sectional view taken on the line 22, Fig. 1. Fig, 3 is a central vertical longitudinal sec: tional view of the devulcanizing chamber.

of the end shafts of said devulcanizing chamber. a

Referring to said drawings by-numerals,

it will be observed that the improved apparatus is supported upon a concrete bed composed of a base 1, a plurality of standards 2, said standards carrying horizontal upper members 3 which form a support and to which is rigidly attached the heating cham her 4. Said heating chamber is in the form of a cylinder and is supported in a horizontal position by said concrete bed. Each end of said cylinder is outwardly rounded, one end thereof being in the form of a door 4 by means, of which access maybe had to said heating chamber. Two or more steam said heating chamber and provided with valves 6 are adapted to deliver steam therein. A steam gage 7 is associated with said chamber. As aforesaid, the chamber is held in a horizontal position by the said concrete bed and heat is delivered to the bottom of said chamber by means of upwardly-incl ned burners 8 which. are supplied by the mam 9 arranged flaring endsoc'ket 18.

A supporting frame 19 composed of longitudinally extending side members and connecting end members is provided with rollers 20, said frame being of a size to permit (its rollers 20 to run on the tracks within the heating chamber 4. Standards 21 are 'arranged in pairs at each end. of said frame 19, and at their upper end carry bearings 22 in which stub shafts 23 are mounted. the inner ends of said shafts being in threaded engagement with enlarged rotuberances 24 carried by the rounded ens 25 of a devulcanizing chamb r 26. Said devulcanizing chamber 26 is supported in said bearing in a.

.horizontal position and is constructed preferably in the form of a cylinder. )ue end of said devulcani'l-ing chamber carries a man hole 27 and is also provided with a relief valve 28. An enlarged opening 2-) is formed in one side of said devulcauizing chamber, said openin being normally sealed by means of a cor 30 and is preferably reinforced by vertical and horizontal stay bars 31-32 arranged in crossing relation. The ends of said stay bars project beyond the edge of said door and are adapted to be engaged by locking bolts to retain said door in a closed position. A pair of mixingbars 34 are arranged longitudinally in said devulcanizlng chamber, said mixing bars being loose therein and adapted to be rotated by the movement of said devulcanizing chamber to agitate the. material therein, as will presently appear. Preferably said bars 34 are rectangular in cross section. One of the shafts 23 has its end portion projected beyond its bearin 22 and is reduced and has its extreme end rectangularly shaped as at 35 to fit the socket 18 formed in the shaft 15 by means of which the rotary movement of said shaft 15 is communicated to the d'evulcanizing chamber 26.

chamber.

' Normally the parts'of the apparatus are in the position shown in Fig. 1, the devulcanizing chamber being within the heating chamber and having its end shaft 23 in locked engagement-with the socket in'the end of the power shaft 15. Power is com- "municated to said'shaft 15 through the pul- To remove the contents of the devulcaniz- 'ing chamber, the door 4 of the heating chamber is opened and said devulcanizing chamber'and its supporting frame run out from said heating chamber by means of the tracks 11. The door 30 of the devulcanizing chamber is then opened and the material discharged is-conveyed in any suitable man ner to the usual 'mill. To re-charge the devulcanizing' chamber, the previously prepared waste material is placed thereinand said devulcanizing chamber is run back into the heating chamber and its shaft 23 is locked to the shaft 15. Steam is then admitted to the heating chamber and heat is applied to .the bottom of said heating chamber through the burners 8. Power is communicated to the shaft 15 to rotate the devulcanizing chamber, as is described above.

What I claim as my invention is "1. An apparatus of the: character described comprising a stationary heating chamber, a power shaft projecting into the same, tracks in said heating chamber, a supporting frame provided with rollers for said tracks, a devulcanizing chamber rotatably supported by said -frame and adapted to be locked to said power shaft, and means for rotating said power shaft. f v

, 2., An apparatus of the character 'described comprising a stationary heating chamber, a power shaft projecting intoone end thereof, tracks supported by the base of said heating chamber, a supporting frame removably mounted on said tracks, a devulcanizing chamber provided with end shafts rotatably mounted in said supporting to the, power shaft.

4. An apparatus of the character described comprising astationary heating chamber, a door for one endof the same, a power shaft projecting through the other end of said chamber, tracks within said chamber and supported upon the base there of, a supporting rame provided with rollers for removably engaging said tracks, end standards carried by said supporting frame and provided with bearings, a devu1canizing chamber provided with end shafts rotatably mounted in said bearings, one of said shafts being adapted for communication with said power shaft for rotating said devulcanizing chamber.

In testimony whereof I hereunto atfix my signature in presence of two witnesses.

EDGAR w. SNYDER,

Witnesses:

C. L. RANDALL, Geo. B. WHITE. 

